Abstract
The number of patients with cardiac failure admitted to hospital in Zaria, Nigeria, month by month during 1972-75 differed highly significantly between the cooler dry months and the hot wet months. The reasons are uncertain, but seasonal changes in blood-pressure and the effects of heat on the circulation and of humidity on the efficiency of sweating may be responsible.
MeSH terms
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Aortic Valve Insufficiency / epidemiology
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Aortic Valve Insufficiency / etiology
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Cardiomegaly / epidemiology
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Cardiomegaly / etiology
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Female
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Heart Diseases / etiology*
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Hospitalization
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Hot Temperature
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Humans
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Humidity
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Hypertension / epidemiology
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Hypertension / etiology
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Male
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Nigeria
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Pregnancy
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Puerperal Disorders / epidemiology
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Puerperal Disorders / etiology
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Pulmonary Heart Disease / epidemiology
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Pulmonary Heart Disease / etiology
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Rheumatic Heart Disease / epidemiology
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Seasons*
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Tropical Climate